Bug 314914 – [GTK][WPE] Clang 22 is overly chatty about -Wunsafe-buffer-usage-in-format-attr-call

• Status: RESOLVED
• Resolution: FIXED
• Component: CMake

[Adrian Perez]

Clang 22.x has this warning enabled by default, and any usage of a function that receives a printf-style format string and parameters can potentially emit a warning if the compiler cannot determine whether strings are null-terminated. Which happens surprisingly often, many of them being false positives. We should disable this warning for now because even using “build-webkit --[gtk|wpe] --no-fatal-warnings” there is so much warning spam that it is impossible to see meaningful compiler warnings/errors in the midle off the chaff.

With the WebKit SDK we use for GTK and WPE the issue is easily reproducible with:

  % CC=clang-22 CXX=clang++-22 build-webkit --wpe

[Adrian Perez]

Pull request: https://github.com/WebKit/WebKit/pull/65008

[Philippe Normand]

*** Bug 309978 has been marked as a duplicate of this bug. ***

[EWS]

Committed 313356@main (b035254290ed): <https://commits.webkit.org/313356@main>

Reviewed commits have been landed. Closing PR #65008 and removing active labels.